Xinjiang is one of the areassandstorms happen most often,results from a dry climate, vast desert and a strong wind.

lege, you will discover ______ learning isabout, from teacher-taught to self-learner．

Parents should pay attention to the cases_______ their children have difficulty adapting to new surroundings.

271. Wait for me for a few more minutes. Iam _____ to a letter from one of my former classmates at college and willfinish writing very soon.

17— I’m sorryI ____ hurt you— Forget it